Impact wrench



FIG. 1 is a front elevation view of an impact wrench embodying my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a front perspective view thereof.

The broken lines in FIGS. 1-7 are for the purpose of illustrating portions of the impact wrench and form no part of the claimed design. 

CLAIM The ornamental design for an impact wrench, as shown and described. 